Room temperature prevulcanization of natural rubber latex using xanthate

Sasidharan, K.; Palaty, Shiny; Gopalakrishnan, K. S.; George, K. E.; Joseph, Rani

doi:10.1002/app.21025

Cited by 14 publications

(7 citation statements)

References 8 publications

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“…Zn(bxt) 2 /ZDC accelerator combination is found to vulcanize NR at lower temperatures, even at room temperature. 17,18 It is found that the mechanical properties of the NR vulcanizate are improved with decrease in vulcanization temperature. The properties are reported to be maximum when the vulcanization temperature is 608C.…”

Section: Introductionmentioning

confidence: 97%

Studies on xanthate/dithiocarbamate accelerator combination in NR/BR blends

Palaty¹,

Joseph²

2006

J of Applied Polymer Sci

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Zinc butyl xanthate [Zn(bxt) 2 ] was prepared in the laboratory. The effect of this xanthate with zinc diethyl dithiocarbamate (ZDC) on the vulcanization of natural rubber (NR), polybutadiene rubber (BR), and NR/BR blend has been studied at different temperatures. The amounts of Zn (bxt) 2 and ZDC in the compounds were optimized by varying the amount of ZDC from 0.75 to 1.5 phr and Zn (bxt) 2 from 0.75 to 1.5 phr. The cure characteristics were also studied. HAF filled NR, BR, and NR/BR blend compounds were cured at different temperatures from 60 to 1508C. The sheets were molded and properties such as tensile strength, tear strength, crosslink density and elongation at break, compression set, abrasion resistance, etc. were evaluated. The results show that the mechanical properties of 80NR/20BR blends are closer to that of NR vulcanizates, properties of 60NR/40BR blends are closer to BR vulcanizates, while the 70NR/30BR blends show an intermediate property.

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Section: Introductionmentioning

confidence: 97%

Studies on xanthate/dithiocarbamate accelerator combination in NR/BR blends

Palaty¹,

Joseph²

2006

J of Applied Polymer Sci

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“…O-alkyldithiocarbonato ligands, known as xanthates, and their metal complexes have many uses such as metal-ore flotation, [1][2][3][4] vulcanization of rubber, 5 biological remediation, 6 non-linear optical applications, 7 synthetic precursors for the generation of metal sulfide nanoparticles, 8,9 as well as their investigation for possible use as therapeutic agents. [10][11][12][13] The complex bis(O-ethyldithiocarbonato)platinum(II), named thioplatin, is found to have antitumor activity against a number of human tumor lines.…”

Section: Introductionmentioning

confidence: 99%

Dithiocarbonato nickel, palladium and platinum complexes bearing bis(diphenylphosphino)ferrocene: synthesis and X-ray structure determination

et al. 2019

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The dithiocarbonato metal complexes M(j 2 S,S-S 2 CO)(j 2 P,P-dppf) {M= Ni, Pd, Pt; dppf= bis(diphenylphosphino)ferrocene} are obtained from the reaction of the metal(II) complexes [M(j 2 S,S-S 2-COEt) 2 ] with the dppf ligand or from the chloride substitution of M(j 2 P,P-dppf)Cl 2 by the O-ethyldithiocabonato anion. These complexes are produced by CO bond cleavage by the O-ethyldithiocarbonato anion present in solution. These new complexes have been characterized by UV-Vis, NMR, IR spectroscopy and elemental analysis. The structures of the three complexes were further confirmed by single-crystal X-ray diffraction analysis.

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“…Zinc alkyl xanthates are known to be effective for the low temperature vulcanization of dry NR and NBR compounds 4–7. Xanthate can also be used for the room temperature prevulcanization of natural rubber latex (NRL) 8. At present, sulfur prevulcanization of natural rubber latex is done by heating the compounded latex for 2–3 h at high temperature (55–60°C) using zinc diethyl dithiocarbamate (ZDC) alone as accelerator, which affects its colloidal stability.…”

Section: Introductionmentioning

confidence: 99%

Use of sodium and potassium butyl xanthate as accelerator for room temperature prevulcanization of natural rubber latex

Palaty

Devi

Joseph

2011

J of Applied Polymer Sci

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Sodium and potassium butyl xanthates (Nabxt and Kbxt) were prepared in the laboratory. Characterization of these xanthates were done using Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (1H NMR) spectroscopy, thermogravimetric analysis (TGA), and differential thermal analysis (DTA) techniques. These xanthates were used as accelerators for the prevulcanization of natural rubber latex (NRL) at room temperature. Optimization of prevulcanization time was done. Films were casted from these prevulcanized NRL. Tensile properties of latex vulcanisates were measured and potassium butyl xanthate gave superior properties to the NRL films compared with sodium butyl xanthate. Effect of thermal ageing on tensile properties of these prevulcanized NRL films was also investigated and these properties were found to be improved after thermal ageing. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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Room temperature prevulcanization of natural rubber latex using xanthate

Cited by 14 publications

References 8 publications

Studies on xanthate/dithiocarbamate accelerator combination in NR/BR blends

Studies on xanthate/dithiocarbamate accelerator combination in NR/BR blends

Dithiocarbonato nickel, palladium and platinum complexes bearing bis(diphenylphosphino)ferrocene: synthesis and X-ray structure determination

Use of sodium and potassium butyl xanthate as accelerator for room temperature prevulcanization of natural rubber latex

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